The Mathematical-Function Computation Handbook pp 521-592 | Cite as

# The Greek functions: gamma, psi, and zeta

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## Abstract

Previous chapters of this book cover the *elementary functions* that are taught in secondary-school mathematics, and included in many programming languages. The gamma, psi, and Riemann zeta functions that we treat in this chapter are among the most important of the class known in mathematics and physics as *special functions*. As the class name suggests, they are more difficult, and less-commonly encountered, than the elementary functions.

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© Springer International Publishing AG 2017